support aarch64

Author: mingmingl-llvm

clang/lib/Driver/ToolChains/Clang.cpp

@@ -6407,7 +6407,7 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
     if (!A->getOption().matches(
             options::OPT_fno_partition_static_data_sections)) {
       // This codegen pass is only available on x86 and AArch64 ELF targets.
-      if (Triple.isX86() && Triple.isOSBinFormatELF())
+      if ((Triple.isX86() || Triple.isAArch64()) && Triple.isOSBinFormatELF())
         A->render(Args, CmdArgs);
       else
         D.Diag(diag::err_drv_unsupported_opt_for_target)

clang/test/Driver/fpartition-static-data-sections.c

@@ -1,5 +1,7 @@
 // RUN: %clang -### --target=x86_64 -fpartition-static-data-sections %s 2>&1 | FileCheck %s --check-prefixes=OPT
-// RUN: not %clang -### --target=aarch64 -fpartition-static-data-sections %s 2>&1 | FileCheck %s --check-prefixes=ERR
+// RUN: %clang -### --target=aarch64 -fpartition-static-data-sections %s 2>&1 | FileCheck %s --check-prefixes=OPT
+
+// RUN: not %clang -### --target=arm -fpartition-static-data-sections %s 2>&1 | FileCheck %s --check-prefixes=OPT
 
 // RUN: %clang -### --target=x86_64 -fpartition-static-data-sections -fno-partition-static-data-sections %s 2>&1 | FileCheck %s --implicit-check-not="-fpartition-static-data-sections"